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test_sigchld.cpython-312.pyc
� Ϫ�f � � � d Z ddlmZ ddlZddlZddlZddlmZ ddlm Z edk( rddl m Z m Z ddl mZ nd Z G d � d e � Zy) zX Tests for L{twisted.internet._sigchld}, an alternate, superior SIGCHLD monitoring API. � )� annotationsN)� platformType)�SynchronousTestCase�posix)�installHandler�isDefaultHandler)�setNonBlockingz,These tests can only run on POSIX platforms.c �H � e Zd ZdZd d�Zd d�Zd d�Zd d�Zd d�Zd d�Z d d�Z y ) �SetWakeupSIGCHLDTestszy Tests for the L{signal.set_wakeup_fd} implementation of the L{installHandler} and L{isDefaultHandler} APIs. c �� � t j � \ }}| j t j |� | j t j |� t |� t |� ||fS )zk Create a non-blocking pipe which will be closed after the currently running test. )�os�pipe� addCleanup�closer ��self�read�writes �D/usr/lib/python3/dist-packages/twisted/internet/test/test_sigchld.pyr zSetWakeupSIGCHLDTests.pipe sQ � � �g�g�i� ��e� ������$�'� ������%�(��t� ��u� ��U�{�� c �t � t j t j � | _ t d� | _ y)z� Save the current SIGCHLD handler as reported by L{signal.signal} and the current file descriptor registered with L{installHandler}. ���N)�signal� getsignal�SIGCHLD�signalModuleHandlerr �oldFD�r s r �setUpzSetWakeupSIGCHLDTests.setUp* s' � � $*�#3�#3�F�N�N�#C�� �#�B�'�� r c � � t | j � t j t j | j � y)zM Restore whatever signal handler was present when setUp ran. N)r r r r r r s r �tearDownz SetWakeupSIGCHLDTests.tearDown2 s( � � �t�z�z�"�� � �f�n�n�d�&>�&>�?r c �� � | j t � � t j t j t j � | j t � � t j t j t j � | j t � � t j t j d� � | j t � � y)zn L{isDefaultHandler} returns true if the SIGCHLD handler is SIG_DFL, false otherwise. c � � y )N� )�argss r �<lambda>z=SetWakeupSIGCHLDTests.test_isDefaultHandler.<locals>.<lambda>D s � r N)� assertTruer r r �SIG_IGN� assertFalse�SIG_DFLr s r �test_isDefaultHandlerz+SetWakeupSIGCHLDTests.test_isDefaultHandler: s� � � ���(�*�+�� � �f�n�n�f�n�n�5� ���)�+�,�� � �f�n�n�f�n�n�5� ���(�*�+�� � �f�n�n�&8�9� ���)�+�,r c �v � | j � \ }}t |� }| j t |� |� y)zV L{installHandler} returns the previously registered file descriptor. N)r r � assertEqual)r r r r s r �test_returnOldFDz&SetWakeupSIGCHLDTests.test_returnOldFDG s2 � � �i�i�k� ��e� �u�%�� ��� ��.��6r c �� � | j � \ }}| j t � � t |� | j t � � t d� | j t � � y)zO C{installHandler(-1)} removes the SIGCHLD handler completely. r N)r r' r r r) r s r �test_uninstallHandlerz+SetWakeupSIGCHLDTests.test_uninstallHandlerO sU � � �i�i�k� ��e� ���(�*�+��u� � ���)�+�,��r�� ���(�*�+r c � � | j � \ }}t |� | j t t j |d� }| j |j t j � t j t j � t j � | j t t j |d� � d� y)z� The file descriptor passed to L{installHandler} has a byte written to it when SIGCHLD is delivered to the process. � � N)r r � assertRaises�OSErrorr r r- �errno�EAGAIN�kill�getpidr r �len)r r r �excs r �test_installHandlerz)SetWakeupSIGCHLDTests.test_installHandlerZ s� � � �i�i�k� ��e��u� �� � �����$��:�� ������E�L�L�1� ���� � � �V�^�^�,� ����R�W�W�T�1� -�.��2r N)�returnztuple[int, int])r= �None) �__name__� __module__� __qualname__�__doc__r r r! r+ r. r0 r< r$ r r r r s+ � �� �(�@� -�7� ,� 3r r )rB � __future__r r6 r r �twisted.python.runtimer �twisted.trial.unittestr �twisted.internet._signalsr r �twisted.internet.fdescr �skipr r$ r r �<module>rI s@ ��� #� � � � /� 6��7��J�5� 9�D�O3� /� O3r
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